Clutch-operating mechanism



July 14, 1925. 1,546,012

. A. A. DENsLlNGER ET AL CLUTCH OPERATING MECHANISM Inve 72%07- AlfredA.Denslzn er so Sch ildknech By AW)- July 14, 1925.

A. A. DENSLING ER ET AL CLUTCH OPERATING MECHANI SM 2 Sheets-Seet 2Filed April 8, 1922 InUen-Zor Patented July 14, 1925.

i UNITED STATES l 1,546,012 PATENTOFFICE- ALFRED A. D'ENSLINGER, OFPHILADELPHIA, PENNSYLVANIA, .AND LEO SCHILD- KNECHT, OF ST. LOUIS,MISSOURI, ASSIGNORS TO LANDIS MACHINE COMPANY, 0F S'I. LOUIS, MISSOURI,A CORPORATION .OF MISSOURI.

v CLUTCH-OPERATING M'ECHANISM.

Application filed April si,

T0 all whom it may Gomera: y

Be it known that we, ALFRED A. DEN- sLINGnR andy Lno SOHILDKNECHT,citizens ofV the United States, residing at Philadelphia, Pennsylvania,and St. Louis, Missouri, respectively, have invented a certain new anduseful Improvement in Clutch-Operating Mechanism, of which the followingis a full., clear, and exact description, suchy as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, forming part of thisapplication.

Our invention relates to clutch operating mechanism such as may be usedon almost any type of machinery which has a clutch resembling that shownin Figure 1, in which a positively rotated disc may be frictionallyengaged by a flo-ating disc, the clutch 0perating mechanism serving tocontrol this en.- gageinent.

lIhe object of our invention is to provide a simpler operating devicethan those with which we are familiar, and to provide a clutch mechanismin which wear will notv affect the efliciency nor require frequentadjustment.

In the accompanying drawings, which illustrate embodiments of our'invention,-

Figure 1 is a longitudinal section through a clutch operated by ourmechanism, showing the clutch engaged.

Figure 2 is a transverse section through the operating mechanism and theshaft uponV which it is mounted and is taken on line 2-2 of Figure 1.r

Figure 3 is a top View of the mechanism.

Figure 4 is` another longitudinal section similar to Figure 1, butshowing the clutch disengaged.

Figures 5 and 6 illustrate a modified construction of our invention,Figure 6 being taken on line 6-6 of Figure 5.

Figure 7 is a vertical longitudinal section through the modificationillustrated in Figures 5 and 6.

In Figure 1 the clutch `is shown mounted upon a. driving shaft 1 andincludes a disc 2 fixed upon the shaft and a pulley 3 rotatably mountedupon the shaft, the disc and pulley having opposed faces adapted to befrictionally engaged by the clutch operating' mechanism. Spaced frompulley-3 is a collar a also fixed upon the shaft and between 1922.sei-iai No. 550,654.

. pulley 3 and collar-'1l are two. sleeves 5 andv Gvbearing against thesides of pulley 3 and collar 4, respectively. Sleeve 5 is mounted upon abushing 7 while sleeve 6 is mounted upon the shaft.

yIt will be understood that the shaft rotates freely in the` bushing andsleeve 6.`

Two angular members 8 and 9 are mounted on sleeves 5 and 6,respectively, their horizontal legs extending toward each other andbeing overlapped asy shown in Figure 1. The leg of member 8 is narrowerthan the leg of'member 9 and the latter is recessed, as best shown inFigure 2, to slidably re-r ceive the leg of member 8. A cap'lO fits overthe horizontal legs of the members and is secured to the sides of thehorizontal leg of member 9. Y

The upper face of the horizontal leg .of member 8 is provided with arecess 11, best shown in Figure 3, and journalecl in cap 10 is a rod 12,the lower end of which is provided with `a toe 13'seated in recess 11and adapted to bea-r against the sides of the latter. The upper endofrod 12 is provided with a handle 14, whereby the rod may be turned ineither direction. Toe 13 forms a cam and the wall of recess 11 lforms a.cam

Y follower whereby rotation of therod will shift members 8 and 9longitudinally of shaft 1 and relatively to each other. Recess 11 iswidened adjacent the end of rodv 12 to permit movement of member 8longitudinally of the shaft and relatively7 to rod 12. v

ACompressed between sleeves 5 and 6 is a coil spring 15V which tends tothrust -the sleeves apart and when permitted to so fun`otion, pressespulley 3 against disc 2, causing i the pulley to rotate with the shaft.The

spring may so function when the toe of rod 12 is turned' transversely ofthe shaft axis,

the threaded hole" Ain cap 10 and oil grooves B are provided in members8 and 9, whereby the bearings of the elements of short sleeve 18;Sleeve'17 extendsv through the righthand legof a U-shaped housing 22 andsleeve 18si'milarly extends through the lefthand le'g'of housing` 2.2and is 'slidable" therein. 'A flangev 174 near' the righthand end ofsleeve 17 engages the inner 'face or the adj afcent leg ofthe housing22. A llanfgjev 18"L on sleeve'lSjis spaced from-the adjacent leg ofhousing`- 22 by' a member 19 which is journaledupon an annular bos's'j26formed on' the' lefth'an'd leg ofmember 22 and surrounding sleeve 18.Member 19 is provided with three cams 2Ov adapted to project throughslots 21 in the leg of housing 22 when radially aligned therewith. lWiththe parts inthe position shown in Figure 7, if member 19` be rotatedV onboss '26, th'e 'inclined faces of cams 2O andl slots 21 force the camsto theV right and out o-fltheslotsand move'rmemb'er' 19 and sleeve 18 tothe right against the lpressure of the coil spring' 27,` thus reducing`the overall ldistance between the outerend's of sleeves- 17` and 18 andremoving thev pressure b'etvveenv the driving and driven `clutch memberson the shaft. Membery 19 may berot'ated on boss 26 by means of a toothedelement 24 lixed on the lower end of vthe operati'ng'rod 23 and in' meshwith a segment 25 on member The spaces between the teeth 1n member 25which mesh with the" teeth of element 24y a clutch'mechanismv comprisingspaced col-V lars secured to said shaft, a' pulley rotatably mounted onsaid shaftbetween said ycollars andv adjacent to one of them, membersslidably mounted onsaid shaft and located betweenthe other collar andsaid pulley and having an extended bearing on each other longitudinallyof the shaft, a spring com-V pressed betweensaid members and a rodextending outwardlyA from the shaft, and

means operatedlbv rotation of said rod for moving said members towardeach other.

2. In ay clutch operating mechanism, spaced members adapted to beloosely mounted on a shaftto have rela-tive move-- ment to and from eachother longitudinally ofthe shaft, meansyieldingly Athrustingl sai d:members apart, 'cams for moving said'menrY bers towardeach other',andinanua-lly oper-- ablemeansrotatable on' one of sa-idmembers foractuating said cams.

3. A clutchme'chanism-comprising spaced a rod extending outwardly from'the shaft,

and meansl operated by rotation of said rod for moving said memberstowardeach other;

il; A clutch device adaptedv tobe posi-l tioned and tofun-ction Yatlanyy desired point` on a shaft irrespective of external apparatus andcomprising spaced collars, shaft' engagin'g elements on saidg collars,'a freely rotatable pulley between said collars', a pair of shaftencirclingr members between saidv pulley andI one of vsaid collars, aspring be tween saidmfembe'rs, and a manually manip-y ulative operatingelement journaled onl one of said membersfor cammin'g; 'said Y memberstoward each other against. the compression of said spr-ing. j

5. In a clutch, a shaft', spaced collars secured thereon, a pulleyrotatably'meunted on said shaft between said'y collars and afdjacent toone of them, nonerotat'able members slidable longitudinally von saidshaft. and adapted to engage said=pulley and one of saidcollars,respectively, Aa manually operable yelement rotatablvmounte'd onone of said members 'and project-ing'at' right angles to the shaft, andmea-ns actuated by rota'- tion o f saidelement to shift said memberslongitudinally. of the shaft.4

In testimony whereof we hereunto affix our signaturesthis 3d? day ofApril, 1922.

ALFRED A. VDEI\TSII\IGER. LEC) SGH'I'LDKN-IECIIT.

